A. Drop out of high school to pursue your dreams. (possible but with the lack of qualifications, not many companies are not convinced to hire you).
B. Learn the retirement age of those in the profession. ( You learn from their experiences and mistakes but you still lack the hands on work experience.)
C. Learn the unemployment rate in the career field. ( To be mentally prepared if you're willing to take the risk in the career field.)
Answer:
D. Research volunteer work or internships related to the career field. (they are up to date, you gain the experience towards the current career field.) (This is the best option)